Strategic Construction of Sulfur-Bridged BODIPY Dimers and Oligomers as Heavy-Atom-Free Photosensitizers

  • Org Lett. 2021 Sep 17;23(18):7220-7225. doi: 10.1021/acs.orglett.1c02622.
Qingbao Gong  1 ,  Qinghua Wu  1  2 ,  Xing Guo  1 ,  Wanwan Li  1 ,  Long Wang  1 ,  Erhong Hao  1 ,  Lijuan Jiao  1
Affiliations
  • 1. The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China.
  • 2. School of Pharmaceutical Sciences, Anhui University of Chinese Medicine, Hefei 230012, China.
PMID: 34463517 DOI: 10.1021/acs.orglett.1c02622
Abstract

An efficient strategy for building sulfur-bridged oligo-BODIPYs based on the SNAr reaction is described. These oligo-BODIPYs showed broadband and strong visible-near-infrared (NIR) light absorption, strong intramolecular exciton coupling, and efficient intersystem crossing (ISC). Generation of 1O2 as well as O2•- under irradiation was found to give high Reactive Oxygen Species generation efficiencies for those oligomers.

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